chrome-devtools-frontend/front_end/panels/elements/components/NodeText.ts

Chrome DevTools UI

// Copyright (c) 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import * as ComponentHelpers from '../../../ui/components/helpers/helpers.js';
import * as LitHtml from '../../../ui/lit-html/lit-html.js';
import nodeTextStyles from './nodeText.css.js';

const {render, html} = LitHtml;

export interface NodeTextData {
  nodeTitle: string;
  nodeId?: string;
  nodeClasses?: string[];
}

export class NodeText extends HTMLElement {
  static readonly litTagName = LitHtml.literal`devtools-node-text`;

  private readonly shadow = this.attachShadow({mode: 'open'});
  private nodeTitle: string = '';
  private nodeId?: string = '';
  private nodeClasses?: string[] = [];

  connectedCallback(): void {
    this.shadow.adoptedStyleSheets = [nodeTextStyles];
  }

  set data(data: NodeTextData) {
    this.nodeTitle = data.nodeTitle;
    this.nodeId = data.nodeId;
    this.nodeClasses = data.nodeClasses;
    this.render();
  }

  private render(): void {
    const hasId = Boolean(this.nodeId);
    const hasNodeClasses = Boolean(this.nodeClasses && this.nodeClasses.length > 0);

    const parts = [
      html`<span class="node-label-name">${this.nodeTitle}</span>`,
    ];

    if (this.nodeId) {
      const classes = LitHtml.Directives.classMap({
        'node-label-id': true,
        'node-multiple-descriptors': hasNodeClasses,
      });
      parts.push(html`<span class=${classes}>#${CSS.escape(this.nodeId)}</span>`);
    }

    if (this.nodeClasses && this.nodeClasses.length > 0) {
      const text = this.nodeClasses.map(c => `.${CSS.escape(c)}`).join('');
      const classes = LitHtml.Directives.classMap({
        'node-label-class': true,
        'node-multiple-descriptors': hasId,
      });
      parts.push(html`<span class=${classes}>${text}</span>`);
    }

    // Disabled until https://crbug.com/1079231 is fixed.
    // clang-format off
    render(html`
      ${parts}
    `, this.shadow, {
      host: this,
    });
    // clang-format on
  }
}

ComponentHelpers.CustomElements.defineComponent('devtools-node-text', NodeText);

declare global {
  // eslint-disable-next-line @typescript-eslint/no-unused-vars
  interface HTMLElementTagNameMap {
    'devtools-node-text': NodeText;
  }
}